Search results
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Performance metrics to index the spatial coverage of mark-recapture data
measures of spatial overlap and potential bias in the development of tag-based biomass estimates are an ... measure of the potential bias in the biomass estimate calculated from non-homogenous spatial mark ... include a measure of the total spatial distribution of effort through time in research or developing ... fisheries, and a measure of the change in bias of mark-recapture estimates through time. Author(s): C ...
Meeting Document : WG-SAM-16/13 : Author(s): C. Marsh, A. Dunn and S. Mormede
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Report of the first SCAR Krill Action Group (SKAG) meeting (Cambridge, United Kingdom, 16 July 2018)
in the last few decades. Understanding of krill behaviour and the timings of krill transport across ... on krill biology in relation to the review of CM 51-07. Interaction between SKAG and Integrating ... to CCAMLR. Prof. Dr. Bettina Meyer (Germany), on behalf of the Scientific Committee, was tasked to ... in June. SCAR approved funding of 4700€ for SKAG to be spent for supporting young scientist in their ...
Meeting Document : SC-CAMLR-XXXVII/23 : Author(s): B. Meyer
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Long term movements and activity patterns of an Antarctic marine apex predator: the leopard seal
advance in our limited knowledge of leopard seals. We show the longest periods of tracking of leopard ... , similar to those observed in other predators in the region including the krill fishery. Analysis of ... dynamics of the region’s fisheries, shows an understanding of leopard seal ecology is vital in the ... ecosystems through local predation. Here we report on the successful use of micro geolocation logging sensor ...
Meeting Document : WG-EMM-18/P09 : Author(s): I.J. Staniland, N. Ratcliffe, P.N. Trathan and J. Forcada
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Development of a five-year work plan for the CCAMLR Scientific Committee
the first stage in the development of the five-year work plan and draws on recommendations arising ... Committee should be developed for consideration by the Scientific Committee in 2017 (SC-CAMLR-XXXV ... , paragraphs 13.8 to 13.20). It was agreed that the work should be led by the Chair of the Scientific Committee ... with input from the conveners of its working groups and that it should be made available for ...
Meeting Document : WG-EMM-17/02 : Author(s): M. Belchier (Chair of SC-CAMLR)
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Report on the status of wandering, black-browed and grey-headed albatrosses at South Georgia
conducted in the mid 1980s, numbers of these two species appear to have decreased by 26% and 14 ... methods used in the 1980s, it is likely that the Bird Island figures are more indicative of the population ... .) since the previous survey in 1984. The magnitude of these population decreases is alarming, given the ... since 1997 in the rate of decline of wandering albatrosses at Bird Island, which now stands at 4.5% per ...
Meeting Document : WG-FSA-04/71 : Author(s): S. Poncet (United Kingdom),G. Robertson (Australia), R. Phillips (United Kingdom), K. Lawton (Australia), B. Phalan, J. Croxall and P. Trathan (United Kingdom)
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Modeling the growth dynamics of Antarctic krill
resulted in the transfer of individuals to the next highest size class (growth), whereas negative net ... in the current literature. The model was forced with an environmental time series of food (pelagic ... that were consistent with observations of experimentally starved individuals. the annual change in ... designed to examine the effect of the ingestion of sea-ice algae in the late winter and early spring. The ...
Meeting Document : WG-EMM-96/68 : Author(s): Lascara, C.M., Hofmann, E.E.
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Regionalisation of the Southern Ocean: a statistical framework
the challenges facing the subdivision of the ocean into meaningful regions for the purposes of modelling ... the challenges facing the subdivision of the ocean into meaningful regions for the purposes of modelling ...
Meeting Document : WG-EMM-06/37 : Author(s): B. Raymond and A. Constable (Australia)
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Circumpolar connections between Antarctic krill (Euphausia superba Dana) populations: Investigating the roles of ocean and sea ice transport
critical food source and shelter, particularly in the early life stages. Advective modelling of transport ... potential roles of the ocean and sea ice in maintaining the observed circumpolar krill distribution. We show ... interaction with sea ice is important in determining the large-scale distribution of krill and its associated ... in the Southern Ocean. Krill have a close association with sea ice which provides access to a ...
Meeting Document : WG-EMM-07/P10 : Author(s): S.E. Thorpe, E.J. Murphy and J.L. Watkins (United Kingdom)
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Revision of the fishery–foraging overlap model
Secretariat was tasked with the revision of the model, including modifications to the model in terms of both ... adjustments to temporal aspects of the underlying model and changes in the form of the index of overlap. The ... Abstract: The fishery-foraging model of Agnew and Phegan (1995) was reviewed by the Working Group ... on Ecosystem Monitoring and Management and its Subgroup on Statistics in 1997. The review found that ...
Meeting Document : WG-EMM-98/05 : Author(s): Secretariat
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Monitoring results of marine debris at Cape Shirreff, Livingston Island during the 1995/96 Antarctic season
Abstract: The principal results of the monitoring survey on marine debris carried out at Cape ... total of 4 251 articles with a total weight of 65.8 kg were obtained. As occurred in previous seasons ... %; metal (77 pieces), 1.81%; and paper (12 pieces), with a 0.28% From the plastic item, those used in ... fisheries were 1 195 articles (strapping bands and net pieces). The total density of marine debris collected ...
Meeting Document : CCAMLR-XV/BG/27 : Author(s): Delegation of Chile